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Current Organic Synthesis

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ISSN (Print): 1570-1794
ISSN (Online): 1875-6271

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Review Article

A Review on Thiocyanation of Indoles

Author(s): Chitteti Divyavani, Pannala Padmaja, Vinod G. Ugale and Pedavenkatagari Narayana Reddy*

Volume 18, Issue 3, 2021

Published on: 03 December, 2020

Page: [233 - 247] Pages: 15

DOI: 10.2174/1570179417999201203211855

Price: $65

Abstract

Background: The thiocyanation of indoles is a direct way for carbon-sulfur bond formation to access 3-thiocyanato-indoles. 3-thiocyanato-indoles exhibit potent biological and pharmacological activities and also serve as building blocks to synthesize many biologically active sulfur-containing indole derivatives.

Objective: The aim of this review is to highlight different approaches for the thiocyanation of indoles focusing on its scope and mechanism.

Conclusion: In this review, we have summarized various methods for the thiocyanation of indoles. Selection of new methods for the preparation of 3-thiocyanato-indoles will be done. The mechanistic aspects and significance of the methods are also briefly discussed.

Keywords: Organosulfur compounds, thiocyanation, indoles, oxidants, acid catalysts, electrochemical thiocyanation, photocatalyzed thiocyanation.

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